Improvement in horse-shoes



JOHN A.

sELE HE'YL, or .BosToN, vi'tAssAcH LettersA Patent No. 87,565, dated Mtr/rch 9, 1 869. m

mnovmvmNT IN HORSE-saone.

'The Schedule referred to .in these Letters Patent and making of th same.

To allpcrsoas to whom these presents may cof-nte:

rBe it known that I, JOHN A. HEYL, of Boston, of the county of Sublk, and State of Massachusetts, have in` 'vented a new and useful Improvement in Horse-Shoes and do hereby declare the same to be fully described in the following specification, and representedl in the accompanying drawings, of which- -v Figure 1 is a side elevation of a horse-shoe and its retainer as provided with my invention.

Figure 2 is an under-side view,

Figure 3, a front view, and

Figure 4, a side elevation of the retainer.

Figure 5 is a top view of the shoe.

Figure 6 is a front view, and

Figure 7 is a side elevation' of it.

FigureS is a top view, and i Figure 9, an end view of one ofthe dovetailed keys employed for keeping the shoe in connection with itsv retainer.

Figure 10 is a vertical and longitudinal section of horse-shoe and `its retainer.

The said retainer, which is shown at A, in the drawings, is a thinV plate, or strip of metal, bent or made in the u sual form-of a horse-shoe.

Itis to be fastened to the hoof of a horse by screws,

` going through 'a series of holes, a a, Ste., made through such retainer, the said screws being screwed into the hoof. Or, instead of such screws,`the retainer may be secured to the hoof in any other proper manner.

The retainer, at its toe, is provided with a dovetailed tenon, b, which is made tapering, both transversely and longitudinally', and extends from the retainer in manner as represented.

Furthermore, there is iixed to the retainer, on its anks, and so as to project from its lower surface, two semi-dovetailed tenons, c c, each of which is in the form of a right-angl'llar` trapezoid, and is bevelled onf the edge which is next tothe tenon b, the opposite edge being without any bevel, but square to the Hat-surface of the retainer.

There is in the shoe B, a dovetailed socket, d, corresponding vinishape with and for receiving the tenon, b, of the retainer.

Furthermore, there are also in the flanks ofthe shoe, two other such sockets, e e, the whole being as shown in the drawings.

After having applied the shoe to the retainer, so as to cause the dovetailed-tenon, and semi-tenons of the latter to enter the dovetailed sockets of the former,

`therel is to be forced into cach ofthe flank-sockets a dovetailed key, O, which tills the spar-cleft in such soeket,and crowds the dovetail'ed tenons into their sockets, so as to weld the shoe in trm connection with the retainer.

Each ofthe' keys C is to be maintained in place in the socket by means cfa screw, D, screwed into the key at its lesser end, and extended into the next adjacent semi-dovetail tenon, the recess for receiving the head of the screw'being formed partly in the tenon. The retainer I usually form with a toe-projection, g, to extend up from it, and against the toe'of a hoof, `when the retainer'is fastened thereto.

The object of the` retainer and its shoe-connections 'is to enablerthe shoe to be readily removed from the hoof, without the necessity of rst dctaching therefrom the Afastenings which may go into the hoof, asthe retainer, when once ixed to a hoof, need not be removed therefrom as often as it may be necessary to renew or remove the shoe.

are all arranged lengthwise of the shoe, and spurs and keys are employed to keep them in engagement. But in my shoe, the dovetail connections on the Hanks are arranged transversely thereof, that of the toe being disposed lengthwise of -the shoe.

Furthermore, I do not employ spurs and keys, separate from the dovetails, to hold the parts in connection, and arranged as in the 'shoe of Sewell, as I employ semi-dovetail tenons, and separatev keys, to complete the side tenons, and I also connect each of the saidsemi-tenons to itsl movable key, or fellow, by a screw.

lhe screws have advantages over the keys, as employed by Sewell, as the latter have to be driven into place, and are very liable to work loose and be lost; and moreover, when driven into place, cannot be easily extracted.

The driving of the keys is also liable to cause ruptule of the spurs from the part from which they project, but the screws, arranged as shown in the accom panying drawings, can easily be withdrawn, and when once set up, are not easily loosened by theordinary use of the shoe.

Furthermore, the arrangement of my flank dovetails, viz', so as to extend transversely across the flanks, is more favorable to preserving the connection of the parts intact, as the Hank dovetails resist, crosswise, the back longitudinal strains of the shoe, whereas, in Sewells shoe, such back strain is extended lengthwise of the` dovetails, and is counteracted by the keys and' spurs only. In my shoe, the dank dovetail-connections aid in resisting the strain tending to separate the main and supplementary 4parts ofthel shoe.

Thereibre, I make no claim to the employment of dovetail connections', keys, and spurs with the main and supplementary parts of the shoe, vas shown in the said Sewells patent.

Nor doI herein claim the shoe-fastening device or devices shown in Letters Patent, No. 80,074, and in-.'

sn'rrs, AssI'GNoaTo i-IIM- i AND JOHN HQWIGGINs, or SAME PLACE.

vented by me, as the 'retainer used with my present invention is applied and xed directly to the sole ofva.

hoof, and not; made so as to grasp or embrace the hoof on its opposite Sides.,` as is the case with the connector shown in such patent.

What I claim as my invention, is

The arrangement of the ank; dovetail onnections,- Aeo as to run transversely across the iizmks of the shoe,

in combination with the arrangement ofthe kevs Within the dovetal sockets, and so as to complete the Hank 

